Justifying spacer or space band



4 2 OO v 9 3 4 Non Dec. 26, 1922.

FILED FEB.16, 1922.

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Devlin s. KENNEDY, or ksaooirirszN, Newy YORK, nssreNon 'roMnneiiNTHaLiie' TYPE cOii/iraNir, A .CORPORATION OF New YORK risataLINO- *JiisrriFYiNesrnoEn on SPACE BAND,

application' med retruaijy is, 1922. seriaiisio.` 536,883,

T0 all whom t may concern.:

IBe it known thatl l, DAVIDS. KENNEDY, a citizen or" the United States,residing at Brooklyn, in the county of Kingsand State of New York, haveinvented certain new and useful Improvements industifying SpacersorSpace Bands, of which the following is a specification, referencebeing .had therein to rthe accompanying'drawing.

My invention .relates ato justifying spacers or spacebands and j)articularly to that form disclosed in the pending application of JamesBeclr, Ser. No. ll56,3l2 0.v As more fully brought out in thatapplication, such spacew band comprises twooppositely tapered orwedge-shaped members, one fielatively stationary and the othermovable,the latter presenting two marginal bars extending in the direction ofits movement andka third cen- Fig. 5 is an enlarged longitudinalsection.4

taken on line 5 5 ofFig. 3;

Fig'. 5a kis a similar section, butshowing the central barasrecessedalongitsinner tace only;

Fig. 6 is an enlarged horizontal'section taken on the line 6"-6 of Fig.4;; -i

FigQ? is a similar view'of the prior form f of spaceband; i i e j Figs.8 and 9 are horizontal sections,onan enlarged scale, taken on thelines8-8 an 9 9 of Fig. l, respectively;

Figs. 10 and 11 are similar views taken ink connection with the .priorform of spaceband and` illustratingv some of its possible defects.

As shown in Figs. l Aand 2, the improved kspaceband comprises twoogpositel tapered or wedge-shaped members and whose outer faces arevertical 'and whose innerengaging acesare inclined at the same angleso'that'the outer -faces will remain parallel;

`while the longer member B isthe movable `shaped membersin propercontacting"relation, while permitting the `membery B to be `all times.Theshorter member A isftlie n' stationary part, being provided atr itsupper end-witli supporting ears'`1 which hold it vagainst `movementduring justiication,

part, being slidablyv connected to the inem'- ber Afin such manner as tobe thrust up- Awardly through the composed line of matrices Z inperforming the justifying action. The movable member B is yformed withytwo longitudinal` slots B1 andr presents two marv'ginalbars B2 and anintermediatecentrally located bai B3, the latter Abeing considerablywider than the other twoand beveled on its opposite edges throughout itslength or at any `rate igor a distance equal tothe extent of movementorn the Amember B. rlhe relatively stationary member A is formed on `itsinner'oi inclined Jrace with a Apair of guides A'2arranged inthelongitudinal slots B1 'and undercutordovetailedon `their inner edgesyto Vreceive the bevelled edges 4of `the bar BQ The sliding' joint orconnection thus formed'serves to hold thevtwo wedgemoved relatively tothe stationary member A in expanding and contractingthe space band asaywhole. Fig. l shows the spacebands in contracted condition, and Fig. 2shows Athem in expanded condition. It will be. noted (Figs. l ande) thatthe guides A2 do not touch the marginal bars B2 but are slidablyconnected. 'solely with the central bar B3. ln this connection, it isalsopointedV `outl that the length of the guides A2 is much greater thanthe width of the bar B3 (the `ratio being more than twoto one), thusproviding a smooth and easy running engagement .between theparts.` Attheir upper ends, the bars B2 and `B3 merge into a thin connecting webB4, the slots `Bl being .stopped short of the endet1 the member B forthat purpose; and at their lower ends,

thebars are connected together by a longer k100 and much thicker web B5which' is left'at 'that end of the member Bfl Between the two webs, theslots B1 ,extend clear through the vmember B so asto .allow thelatter tobe taperedvdownto the extentindicated and 105 at "the saine time permitthe guides A2 to' enter the 'slots in making sliding connection "withthe barL B3without `projecting beyond the outer' or vertical face of themember B. l

In lassembling the two members A" and B, 116` f sure exerted by thecentral bar against t the guides l2 are slipped over the lower end ofthe bar B3 (Which, it is bevelled throughout its length), and aheadcdpin B is then secured tothe web B5 at the extreme loiver end of theslots B1 in position to engage the lower end of the member and limit theupward movement of the member B. rlie doivn'v-fard more ment of themember is limited by the direct engagement ofthe web vfith the upperends of guides A2, such being, the position of the parts duringthecirculation of the spaceband through the machine and beforejustification. lntliis way, also,y 'the two members of the spaceband arepermanently locked together.` As thus far described, and except ashereinafter pointed out,` the parts are or may be the same as set forthin the aforementioned Weck application, wherein tlie various advantagesare discussed at length. i

The characteristic and distinguishing;` feature of my invention is thatthe central bar B3 is recessed or reduced along its opposite side faces,as at 7) and o1, for a distance at least equal to the extent of movementof the member' B, see particularly Figs. 3, fr and 5. lf desired,however, the bar may be recessed only along its inner face, as shown inliio. 5, this being the more important feature, for reasons presently toappear.

In order to bring` out the advantages of my improved spaceband, aneffort has been made to depict thel possible defectsbvli may arise inthe use of the prior spacebanu. rlhis prior spaceband is shown in crosssec` tion in Fig; i', and it Will be noted that the central bar B is ofthe same thickness that of the marginal bars B2, all three bars havingtheir opposite side faces flush with each other. As a result, it hasoeen found in practise that when such spaceband is composed in line inadvance of recessed matrix Z (this being the usualr form for the thickermatrices), the central bar B3 has a tendency to force the stationarymember rfi into 'the recess Z1, in the manner illustrated in f1 l i l0.ihrs tendency is due to the lateral p stationary'member during thejustifying action and to the fact that the stationary member isunsupported at the center. Initially, perhaps, the resiliency of themetal might enable the stationary member `to spring` back into propershape, but sooner or later the member Will lose its resiliencv andybecome permanently distorted. l/Vheii ,this occurs, the spaceband cannotlock up properly in the composed line and hence will f allow the moltenmetal to enter between the elements, With the evil results whichnecessarily follow. Such defect is even more pronounced When thedistorted spaceband is composed 'in advance of an unrecessed matr1X,a-swill be clear from Flo'.v ll. Other Will be remembered,

ineens@ objections unnecessary t mention also in the` use of iiyimproved spaceband, the foregoing objections completely obri ated. yyrecessing it along its inner face.y the bar B3 is maintained out ofobjectionable contact -with the opposing face of the stationarynieniberA, and hence is unable to exert any appreciable pressure (if any at all)on said stationary member during the justifying action. On the contrary,the pressure on the stationary member is applied or concentrated Whollyby the marginal bars B2, which contact therewith only at its opposite etgres, where it is firmly and solidljl,Y supported the unrecessedportions of the adjacent matrix, see Fign t1 and i). The recessing isfurther adyuanV wjeous in that the central bar, being free frompressure, is better able to perform its guiding functions.

As before stated; the recessing of the bar rspecine form of spacebandnoted, but it :vill

be obvious that many changes and alterations may be made. therein and initsmode of application Without departing'` from spirit. For instance,instead of recessing the central bar of the movable section1 thestationary member might be recessed along its inner race, or the `partsotherwise formed, so asto avoid the objectionable contact feferred to.lt should be nndeiu-itood, therefore, that l do not limit myself to anyspecilic form or embodiment, except insofar as such limitationsarcspeci'lied in tlmrlaims.

Having' thus described my invention, what lclaim is ,as follows:

l. A justifyingspaceband comprisingr a movable slotted edge-shapedmember presentingtwo marginal bars extending' in the 1+, rob

e direction of its-movement and an'intermediate bar extending in thesame direction,

and a relativel f stationar coo eratino i .Y n,

wedge-shaped member to Which the movable member is slidably connected,the two Said members being relatively formed sov as to avoidobjectionable Contact between the opposing faces of the stationarymember and the intermediate bar of the movable member during' thejustifying movements of the latter, for the purpose described.

2. A justifying spaceband comprising a movable slotted wedgershapedmemberk presentirrg` two marginal bars extending in the lill) directionof its movement and an intermediate bar extending in the same direction,and a .relatively stationary cooperating wedgeshaped member to which themovable member is slidably connected, the said movable member having itsintermediate bar recessed or reduced along its inner face to avoidobjeetionable contact with the opposing face of the stationary member,for the purpose described'. v

3. A justifying spaceband comprising a movable slotted wedge-shapedmember presenting two marginal bars extending in the direction of itsmovement and an intermediate bar extending in the same direction, and arelatively stationary cooperating wedgeshaped member to which themovable member is slidably connected, the said movable member having itsintermediate bar recessed or reduced along its outer face toavoidobject-ionable Contact with the opposing face of an adjacent matrixduring the justifying action. f

4t. A justifying spaceband comprising a movable slotted wedge-shapedmember1 presenting two marginal bars extending in the direction of itsmovement and an intermediate bar extending in the same direction, and arelatively stationary cooperating wedge-shaped member to which themovable member is slidably connected, the said movable member having itsintermediate bar recessed or reduced along both of its side faces, forthe purpose described.

5. A justifying spaceband comprising a movable slotted wedge-shapedmember presenting two marginal bars extending in the direction of itsmovement and an intermediate bar extending in the same direction, and arelatively stationary cooperating wedge-shaped member having guidesarranged in the slots of the movable member and slidably connectedsolely with the intermediate bar, the two said members being relativelyformed so as to avoid objectionable contact between the opposing facesof the stationary member and the intermediate bar of the movable memberduring the justifying movements of the latter, for the purposedescribed.

6. A justifying spaceband comprising a movable slotted wedge-shapedmember presenting two marginal bars extending in the direction of itsmovement and an intermediate bar extending in the same direction, and arelatively stationary cooperating wedgeshaped member having guidesarranged in the slots of the movable member and slidably connectedsolely with the intermediate bar, the said intermediate bar beingrecessed or reduced along its inner face to avoid objectionable contactwith the opposing face 'of the stationary member, for the purposedescribed. y

7. A justifying spaceband comprising a movable slotted wedge-shaped.member presentingtwo marginal bars extending in the direction of itsmovement and an intermediate bar extending in the same direction, and arelatively stationary cooperating wedgeshaped member having guidesarranged in the slots of the movable member and slidably connectedsolely with the intermediate bar, the said bar being recessed or reducedalong its outer face to avoid objectionable contact with the opposingface of an adjacent matrix during the justifying action.

8. A justifying spaceband comprising a movable wedge-shaped memberpresenting a plurality of bars extending in the direction of itsmovement, and a relatively stationary cooperating wedge-shaped memberslidably connected to a single one of the longitudinal bars of themovable member, the two said members being relatively formed to avoidobjectionable contact between the opposing faces of the stationarymemberl and the connected bar of the movable member, for the purposedescribed.

9. A movable wedge-shaped justifying member presenting two marginaljbarsextending in the direction of its movement and an intermediate barextending in the same direction, the said intermediate bar beingrecessed or reduced along one of its side faces, for the purposedescribed.

l0. A movable wedge-shaped justifying member presenting twoy marginalbars eX- tending in the direction of its movement and an intermediatebar extending in the same direction, the said intermediate bar beingrecessed or reduced along both of its side faces, for the purposedescribed.

In .testimony whereof, I have aHXed my signature hereto. it

DAVID S. KENNEDY.

